从整个世界包装业的发展看,尽管塑料包装材料一直经受环境问题的严重挑战,但塑料包装在包装工业中仍成为需求增长最快的材料之一。为适应新时代的要求,塑料包装材料不仅要能满足市场包装质量和效益等日益提高的要求外,还需向节省能源、节约资源、用后易回收利用或易被环境降解 Judging from the development of the packaging industry in the world as a whole, plastic packaging remains one of the fastest growing materials in the packaging industry despite its severe environmental challenges. In order to meet the requirements of the new era, plastic packaging materials not only meet the increasingly high requirements of market packaging quality and efficiency, but also need to save energy, save resources, be easy to be recycled after use or be easily degraded by the environment